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20 12 or 24V DC Interface Board
Section 2: Installation and set-up Operating and maintenance instructions
January 2015 3-9008-701 Rev J
Figure 2-4 12/24V Prover interface board
J1: To optical assembly (pin 6 not used)
J2: To control connection
J3: To water draw hardware kit
J4: To run valve
J5: For external control of S1 and S2
J6: 1-2 12V Operation
1-3 24V Operation
S1: Run — Return
S2: Upstream - Downstream